orthophoto 中文意思是什麼

In aerial survey and photogrammetric services, the office is developing a new series of an orthophoto image covering the region

在航空測量及攝影測量服務方面，該處正開發一系列涵蓋本港全境的新正射影像。

Digital products of fundamental geographic information 1 : 10000, 1 : 50000 digital orthophoto maps

基礎地理信息數字產品1 : 10000 1 : 50000數字正射影像圖

Orthophoto stereo - mate

立體正射像片

Investigation using remote sensing ( rs ) technology can breakthrough the limits of traditional methods, make full use of its capability of integration, visualization, rapidity and vast - dimensions analysis, and get better results the paper takes the up - to - date landsat - 7 etm + data, which is the most widely used, and quickbird data, which has the highest resolution nowadays, and according the features of the data and landslides, processes the quickbird data with 1 : 10 000 dem orthophoto correction and the landsat - 7 etm + data as follows : ( 1 ) selecting optimal spectrum band : selects 753 bands as the optimal bands ; ( 2 ) image intensifying : selects the principle components processing method on the basis of comparing several image intensifying methods ; ( 3 ) rigour geometric direction : corrects the geometric distortion of the map ; ( 4 ) image fusion : mainly takes his space transform fusion and resolution fusion method, and acquires maps with higher spectrum resolution as well as space resolution. after that, the visual effect of the image has been enhanced, and the interpretation precision

採用遙感技術，可以突破傳統調查方法的限制，發揮其宏觀、綜合、直觀、快速的特點，取得更好的效果。論文選取目前應用最廣的陸地衛星最新系列landsat - 7etm +數據和空間解析度最高的商業衛星quickbird數據作為主要的數據源，根據數據的特點及滑坡災害應用特徵，對quickbird遙感數據則基於1 ： 10000dem進行了正射校正，對etm +遙感數據進行了波段優選，選取了753作為最佳組合波段；圖像增強，通過各種增強處理方法的效果對比，選擇主成分分析法對圖像進行增強；幾何精校正，糾正圖像的幾何變形；影像融合，主要選取了效果較好的his空間變換融合和解析度融合，得到的圖像既具有較高的光譜解析度，同時也具有較高的空間解析度。經過上述數字處理，較好地改善了圖像的視覺效果，提高了圖像解譯的精度。

Photogrammetric products - part 3 : requirements for the orthophoto

攝影測量產品.第3部分:正射投影像片的要求

Digital products of fundamental geographic information. digital orthophoto topographic maps

基礎地理信息數字產品.數字影像地形圖

An orthophoto image is an image of the earth surface, which contains comprehensive and easy - to - recognise earth surface information with correct scale and position for planning, design, analysis, mapping, communications and presentation purposes

正射影像是地球表面的影像，包括全面及容易辨認的地球表面資料，而且比例及位置正確，可作規劃、設計、分析、繪圖、通訊、展示等用途。